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p = 8. The calculation for this equation works out as follows: 4p - 12 = 20 4p = 20 + 12 4p = 32 p = 32 / 4 p = 8
4p+1 = 10 4p = 10-1 4p = 9 p = 2.25
15 + 3 = 7p - 4p ie 18 = 3p so p = 6
4p = 32 Therefore, p = 32/4 p = 8
3p - 8 = 13 - 4p : Add 4p to both sides 7p - 8 = 13 : Add 8 to both sides 7p = 21 : Divide both sides by 7 p = 3.